EP0445962A3 - Method of inspecting a honeycomb structural body for purifying exhaust gases and apparatus used in the method - Google Patents

Method of inspecting a honeycomb structural body for purifying exhaust gases and apparatus used in the method Download PDF

Info

Publication number
EP0445962A3
EP0445962A3 EP19910301605 EP91301605A EP0445962A3 EP 0445962 A3 EP0445962 A3 EP 0445962A3 EP 19910301605 EP19910301605 EP 19910301605 EP 91301605 A EP91301605 A EP 91301605A EP 0445962 A3 EP0445962 A3 EP 0445962A3
Authority
EP
European Patent Office
Prior art keywords
inspecting
exhaust gases
apparatus used
structural body
purifying exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19910301605
Other versions
EP0445962B1 (en
EP0445962A2 (en
Inventor
Toshihiko Hijikata
Satoru Yamada
Ryouzi Horie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of EP0445962A2 publication Critical patent/EP0445962A2/en
Publication of EP0445962A3 publication Critical patent/EP0445962A3/en
Application granted granted Critical
Publication of EP0445962B1 publication Critical patent/EP0445962B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/031—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters having means for by-passing filters, e.g. when clogged or during cold engine start
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/04—Filtering activity of particulate filters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Exhaust Gas After Treatment (AREA)
EP91301605A 1990-03-06 1991-02-27 Method of inspecting a honeycomb structural body for purifying exhaust gases and apparatus used in the method Expired - Lifetime EP0445962B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2054309A JPH03255934A (en) 1990-03-06 1990-03-06 Method and device for inspecting honeycomb structural body for exhaust gas purification
JP54309/90 1990-03-06

Publications (3)

Publication Number Publication Date
EP0445962A2 EP0445962A2 (en) 1991-09-11
EP0445962A3 true EP0445962A3 (en) 1992-04-22
EP0445962B1 EP0445962B1 (en) 1996-05-08

Family

ID=12966976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91301605A Expired - Lifetime EP0445962B1 (en) 1990-03-06 1991-02-27 Method of inspecting a honeycomb structural body for purifying exhaust gases and apparatus used in the method

Country Status (4)

Country Link
US (1) US5102434A (en)
EP (1) EP0445962B1 (en)
JP (1) JPH03255934A (en)
DE (1) DE69119272T2 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2807370B2 (en) * 1992-03-23 1998-10-08 日本碍子株式会社 Inspection method and apparatus for pressure loss during regeneration of exhaust gas purifying honeycomb structure
FR2717577B1 (en) * 1994-03-21 1996-05-31 Peugeot Method and device for testing and controlling a particulate filter for an exhaust line.
JP3904933B2 (en) * 2001-03-30 2007-04-11 日本碍子株式会社 Inspection method and inspection apparatus for detecting defects
US6666070B1 (en) * 2002-06-26 2003-12-23 Corning Incorporated Method for testing the integrity of DPFs
JP3857197B2 (en) * 2002-07-12 2006-12-13 日本碍子株式会社 Crack detection method and crack detection apparatus for honeycomb structure
US6766259B2 (en) * 2002-07-29 2004-07-20 Baxter International Inc. System and a method for detecting fiber damage in a dialyzer
US20050050943A1 (en) * 2003-09-08 2005-03-10 Tom Barber Dry aerosol leak detection for dialyzers
US7410528B2 (en) * 2004-11-30 2008-08-12 Corning Incorporated Method and system for testing the integrity of green plugged honeycomb structure
US7043964B1 (en) 2004-12-20 2006-05-16 Corning Incorporated Method and system for detecting leaks in a plugged honeycomb structure
US7520918B2 (en) * 2004-12-21 2009-04-21 Corning Incorporated Method and system for identifying and repairing defective cells in a plugged honeycomb structure
JP4926173B2 (en) * 2005-07-29 2012-05-09 コーニング インコーポレイテッド System and apparatus for detecting defects in honeycomb body using particulate fluid
US20070144260A1 (en) * 2005-12-27 2007-06-28 Dong Fei Non-destructive evaluation of particulate filters
US20070144263A1 (en) * 2005-12-27 2007-06-28 Caterpillar Inc. Apparatus for non-destructive evaluation of a workpiece including a uniform contact apparatus
US7674309B2 (en) * 2006-03-31 2010-03-09 Corning Incorporated Honeycomb filter defect detecting method and apparatus
WO2007122715A1 (en) * 2006-04-20 2007-11-01 Ibiden Co., Ltd. Method of inspecting honeycomb fired body and process for producing honeycomb structure
US20080173071A1 (en) * 2007-01-22 2008-07-24 Park Timothy A Honeycomb filter defect detecting method
US7698945B2 (en) * 2007-11-08 2010-04-20 Caterpillar Inc. System and method for detecting internal flaws in a particulate filter
US8049878B2 (en) * 2008-08-22 2011-11-01 Corning Incorporated Systems and methods for detecting defects in ceramic filter bodies
US8234909B2 (en) * 2009-08-26 2012-08-07 Corning Incorporated Method and apparatus for inspecting ceramic wall flow filters
JP5837889B2 (en) 2010-02-17 2015-12-24 ダウ グローバル テクノロジーズ エルエルシー Filter and membrane defect detection system
US20120037005A1 (en) * 2010-08-13 2012-02-16 General Electric Company Filter integrity monitoring system
BR112013004675A2 (en) 2010-10-01 2016-07-26 Dow Global Technologies Llc system for determining whether a substrate has an acceptable pore size or uniformity, method and method for identifying whether the pores of a substrate are outside a defined range or above or below a defined size
WO2012176889A1 (en) * 2011-06-24 2012-12-27 住友化学株式会社 Device for inspecting, method for producing, and method for inspecting honeycomb filter
JP6238899B2 (en) * 2012-09-28 2017-11-29 日本碍子株式会社 Defect detection method and repair method for monolithic separation membrane structure, and monolithic separation membrane structure
US9038439B2 (en) 2012-11-28 2015-05-26 Corning Incorporated Apparatus and methods for testing a honeycomb filter
JP6032142B2 (en) 2013-07-11 2016-11-24 株式会社デンソー Defect inspection method for honeycomb structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751779A (en) * 1954-07-30 1956-06-26 Apra Precipitator Corp Method for finding the efficiency of gas cleaning apparatus
FR2174976A1 (en) * 1972-03-06 1973-10-19 Baxter Laboratories Inc
GB2021274A (en) * 1978-04-21 1979-11-28 Ngk Insulators Ltd Method of and a device for inspecting bodies having a multiplicity of parallel channels extending therethrough

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638688A (en) * 1948-09-23 1953-05-19 American Optical Corp Filter testing device
US3903727A (en) * 1973-11-30 1975-09-09 Avco Corp Smoke sampling apparatus
US4155247A (en) * 1977-05-02 1979-05-22 Westinghouse Electric Corp. Multi-part gas sampler
USRE31952E (en) * 1980-08-11 1985-07-23 Flanders Filters, Inc. Method and apparatus for the leak testing of filters
US4455180A (en) * 1981-08-24 1984-06-19 Corning Glass Works Method of fabricating a sintered and selectively plugged honeycomb structure
JPS6253767A (en) * 1985-08-30 1987-03-09 Kao Corp Apparatus for applying viscous material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751779A (en) * 1954-07-30 1956-06-26 Apra Precipitator Corp Method for finding the efficiency of gas cleaning apparatus
FR2174976A1 (en) * 1972-03-06 1973-10-19 Baxter Laboratories Inc
GB2021274A (en) * 1978-04-21 1979-11-28 Ngk Insulators Ltd Method of and a device for inspecting bodies having a multiplicity of parallel channels extending therethrough

Also Published As

Publication number Publication date
DE69119272T2 (en) 1996-10-31
US5102434A (en) 1992-04-07
EP0445962B1 (en) 1996-05-08
JPH03255934A (en) 1991-11-14
JPH05658B2 (en) 1993-01-06
EP0445962A2 (en) 1991-09-11
DE69119272D1 (en) 1996-06-13

Similar Documents

Publication Publication Date Title
EP0445962A3 (en) Method of inspecting a honeycomb structural body for purifying exhaust gases and apparatus used in the method
HUT62206A (en) Method and apparatus for purifying gases particularly air and flue gases
GB2257696B (en) Method and apparatus for cleaning exhaust gas
ZA886879B (en) Method for scrubbing pollutants from and exhaust gas stream
EP0337809A3 (en) Catalyst for purifying exhaust gas and method for production thereof
DE3570605D1 (en) Method and device for purifying solvent-laden exhaust air
HUT50057A (en) Method and apparatus for purifying waste gas or contaminated air
GB2267662B (en) Method and apparatus for treating diesel exhaust gas to remove fine particulate matter
EP0658369A3 (en) Method for purification of exhaust gas and apparatus used for purification.
ZA912182B (en) Method and apparatus for filtering engine exhaust
ZA875386B (en) Method and system for exhaust gas stream scrubbing
GB9410875D0 (en) Method and apparatus for reducing particles in exhaust gases
EP0499286A3 (en) Catalyst for and method of purifying exhaust gas
EP0373665A3 (en) Method for exhaust gas cleaning
GB8914741D0 (en) Process of and apparatus for continuously purifying gases
ATA34788A (en) METHOD FOR DESODORING AND PURIFYING EXHAUST AIR AND EXHAUST GAS
HUT52717A (en) Apparatus for removing particles from exhaust and flue gases
AU6942391A (en) Method and equipment for the removal of pitch- or tar-like harmful substances, present in exhaust gases
GB2228072B (en) Device for removal of particulates from exhaust and flue gases
DE3470462D1 (en) Process and apparatus for purifying gases
HU893883D0 (en) Exhaust silencer and process for manufacturing it
EP0330175A3 (en) A method and an apparatus evaluating the gas purifying ability of a gas purifier
ZA914375B (en) Process and apparatus for purifying dust-and pollutantcontaining exhaust gases
EP0333103A3 (en) Exhaust gas sensor and process for producing same
AU5517486A (en) Process for the selective elimination of nitric oxides contained in exhaust gases

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT

17P Request for examination filed

Effective date: 19920915

17Q First examination report despatched

Effective date: 19941013

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB IT

REF Corresponds to:

Ref document number: 69119272

Country of ref document: DE

Date of ref document: 19960613

ITF It: translation for a ep patent filed
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050217

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060227

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060227

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20070302

Year of fee payment: 17

BERE Be: lapsed

Owner name: *NGK INSULATORS LTD

Effective date: 20080228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090227

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090206

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100901